Concrete stirrer for concrete production line
By designing a double-shell mixer for concrete production lines, wet and dry separation and high-pressure water flow cleaning are achieved, solving the problems of uneven mixing and difficulty in self-cleaning in traditional mixers, and improving the efficiency and stability of concrete processing.
Patent Information
- Application Number
- CN202420829881.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-04-22
AI Technical Summary
When mixing concrete, traditional mixers can easily cause water to react quickly with cement, resulting in uneven mixing of cement clumps and large aggregates, and the inner wall of the mixer is prone to dryness and damage, which requires manual cleaning, which is inefficient.
A concrete mixer is designed, including two shells, which achieves uniform mixing through a dry and wet separation process, and cleans the inner walls through high-pressure water flow to achieve self-cleaning. At the same time, the temperature control pipes and cooling towers reduce the condensation speed of concrete and extend the storage time.
It realizes uniform mixing and self-cleaning of concrete, extends the service life of the inner wall of the mixer, and improves the efficiency and stability of concrete processing.
Smart Images
Figure CN222553869U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of concrete, in particular to a concrete mixer used in a concrete production line. Background Art
[0002] When mixing, traditional mixers often add aggregates, cement and water into the mixer together. However, this will cause the water and cement to react quickly, causing some cement to clump, and cause large aggregates to be mixed unevenly and easily sink to the bottom. In addition, after a long period of processing, the concrete attached to the inner wall of the traditional mixer is easy to dry and cause damage to the inner wall, so workers need to clean it manually, and the processing efficiency is slow.
[0003] Therefore, it is necessary to propose a concrete mixer for a concrete production line to solve the above problems. Utility Model Content
[0004] The utility model aims to provide a concrete mixer for a concrete production line to solve the above-mentioned problems of uneven mixing and inability to self-clean.
[0005] To achieve the above object, the utility model provides the following technical solutions: a concrete mixer for a concrete production line, comprising a first shell, a second shell is arranged above the first shell, a tooth plate is rotatably mounted on the lower surface of the second shell, the tooth plate is rotatably mounted on the middle of the upper surface of the first shell, a central column is arranged inside the first shell, a top plate is fixedly mounted on the top of the central column, the bottom end of the central column is rotatably clamped in the middle of the bottom surface of the first shell, and the top plate is rotatably mounted in the middle of the top end of the first shell;
[0006] A central groove is provided in the middle of the central column, a plurality of stirring rods are fixedly installed at the outer ring of the central column, a side groove is provided in the middle of the plurality of stirring rods, a first nozzle is provided at the end of the stirring rod away from the central column, a top groove is provided inside the top plate, and a second annular nozzle is provided on the lower surface of the top plate, and the second nozzle, the top groove, the central groove, the side groove and the first nozzle are connected in sequence.
[0007] Preferably, the lower end of the center column extends to the outside of the first shell and is fixedly installed with a gear ring, the lower surface of the gear ring is fixedly installed with a first connecting tube, the outer rotating sleeve of the first connecting tube is provided with a sealing ring, and the sealing ring is rotatably clamped with a second connecting tube at one end away from the first connecting tube.
[0008] Preferably, a second motor is fixedly mounted on one side of the first shell, a second gear is fixedly mounted on the driving end of the second motor, and the second gear and the gear ring are driven by a rack belt.
[0009] Preferably, a third shell is fixedly installed inside the first shell, a temperature control pipe is fixedly installed between the first shell and the third shell, the temperature control pipe is tightly wound around the outer surface of the third shell, a cooling tower is provided on one side of the first shell, the input end of the temperature control pipe extends to the outside of the first shell and is connected to the output end of the cooling tower, and the output end of the temperature control pipe extends to the outside of the first shell and is connected to the input end of the cooling tower.
[0010] Preferably, an auger is rotatably mounted inside the second shell, a third motor is fixedly mounted on the upper surface of the second shell, and a driving end of the third motor passes through the upper wall of the second shell and is fixedly mounted on the end of the auger.
[0011] Preferably, the tooth plate is provided with two symmetrical second leakage grooves, each of which occupies a quarter of a circle, and the upper surface of the first shell is provided with a plurality of first leakage grooves corresponding to the second leakage grooves, and a first motor is fixedly installed on one side of the second shell, and a first gear is fixedly installed on the driving end of the first motor, and the first gear is meshed with the tooth plate.
[0012] Preferably, a plurality of feed ports are fixedly mounted on the upper surface of the second shell.
[0013] Preferably, a plurality of evenly distributed scrapers are fixedly mounted on the bottom end of the central column.
[0014] Technical effects and advantages of the utility model:
[0015] 1. By setting up the first shell, the raw materials are first dry mixed in the second shell, and after the dry mixing is sufficient, they are transported to the inside of the first shell, and wet mixed in the first shell, and then discharged from the discharge port to achieve dry and wet separation. Firstly, the materials are fully mixed and then water is added to increase the uniformity of mixing and prevent the occurrence of uneven mixing of large aggregates;
[0016] 2. When the second shell is dry mixed, the external water pump is controlled to add the proportioned water flow into the first shell, so that the inner wall of the first shell can be cleaned while adding water, preventing the concrete on the inner wall of the first shell from condensing, saving water, and allowing the device to process concrete for a long time, and self-cleaning can be achieved during the processing;
[0017] 3. By setting up a temperature control pipe, the mixed concrete will be stored inside the first shell when in use. The cooling tower will input constant temperature water flow into the temperature control pipe, thereby cooling the inside of the first shell, so that the coagulation speed of the concrete inside it is reduced, so that the first shell has the ability to store concrete. Even if the transport vehicle has not arrived, the concrete can be processed without reducing the coagulation time of the concrete, which can ensure that the concrete still has sufficient time during transportation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The utility model is a structural schematic diagram of a concrete mixer used in a concrete production line.
[0019] Figure 2 It is a cross-sectional view of the second shell in the present utility model.
[0020] Figure 3 It is a schematic diagram of the connection structure between the first housing and the second motor in the utility model.
[0021] Figure 4 It is a cross-sectional view of the first shell in the utility model.
[0022] Figure 5 It is a cross-sectional view of the central column in the utility model.
[0023] Figure 6 For this utility model Figure 5 Enlarged view of point A in the middle.
[0024] Figure 7 It is a schematic diagram of the connection structure of the rack belt and the gear ring in the utility model.
[0025] In the figure: 1. first shell; 2. second shell; 3. cooling tower; 4. tooth plate; 5. first motor; 6. second motor; 7. temperature control pipe; 8. center column; 11. first trough; 12. third shell; 21. auger; 22. third motor; 23. feed port; 41. second trough; 51. first gear; 61. second gear; 62. rack belt; 63. gear ring; 64. first connecting pipe; 65. sealing ring; 66. second connecting pipe; 81. top plate; 82. stirring rod; 83. scraper; 84. center trough; 85. top trough; 86. wing trough; 87. first nozzle; 88. second nozzle. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] The utility model provides Figure 1-Figure 7 A concrete mixer for a concrete production line shown in the figure comprises a first shell 1, a central column 8 is arranged inside the first shell 1, a top plate 81 is fixedly installed on the top of the central column 8, the top plate 81 is used for stirring and mixing raw materials, the bottom end of the central column 8 is rotatably clamped in the middle of the bottom surface of the first shell 1, the top plate 81 is rotatably installed in the middle of the top of the first shell 1, a plurality of stirring rods 82 are fixedly installed at the outer ring of the central column 8, a plurality of evenly distributed scrapers 83 are fixedly installed at the bottom end of the central column 8, a discharge port is opened on one side of the bottom surface of the first shell 1, a discharge pipe is fixedly installed below the discharge port, and an electric control valve is installed on the discharge pipe, when in use, the central column 8 drives the stirring rod 82 and the scraper 83 to rotate to stir the material inside the first shell 1, and accelerates the material inside the first shell 1 to leak out from the discharge port;
[0028] A central groove 84 is provided in the middle of the central column 8, and side grooves 86 are provided in the middle of the plurality of stirring rods 82. A first nozzle 87 is provided at one end of the stirring rods 82 away from the central column 8. A top groove 85 is provided inside the top plate 81, and a second annular nozzle 88 is provided on the lower surface of the top plate 81. The second nozzle 88, the top groove 85, the central groove 84, the side grooves 86, and the first nozzle 87 are connected in sequence. When a high-pressure water flow is introduced into the central groove 84, the water flow will enter the inside of the side grooves 86 along the central groove 84 and finally be ejected through the first nozzle 87. The diameter of the first nozzle 87 is smaller than that of the side grooves 84. 6, and the diameter of the side groove 86 is much smaller than the diameter of the central groove 84, so the water flow will be accelerated to spray out of the first nozzle 87, and the stirring rod 82 will continuously rotate to spray the high-pressure and high-speed water flow onto the inner wall of the first shell 1, thereby flushing the concrete on the inner wall of the first shell 1. At the same time, the high-pressure water flow will enter the interior of the top groove 85 along the central groove 84, and then flow out from the second nozzle 88. The flow rate of the second nozzle 88 is less than the water inlet of the top groove 85, so that the water flow will also be accelerated to rush out of the second nozzle 88, and then the surface of the central column 8 is flushed, thereby achieving all-round flushing.
[0029] The lower end of the center column 8 extends to the outside of the first shell 1 and is fixedly installed with a gear ring 63. A first connecting pipe 64 is fixedly installed on the lower surface of the gear ring 63. A sealing ring 65 is provided on the outer rotating sleeve of the first connecting pipe 64. The end of the sealing ring 65 away from the first connecting pipe 64 is rotatably clamped with a second connecting pipe 66. The second connecting pipe 66 is connected to an external high-pressure water pump, and the high-pressure water pump is used to convey the water flow after the proportioning is completed. A second motor 6 is fixedly installed on one side of the first shell 1. A second gear 61 is fixedly installed on the driving end of the second motor 6. The second gear 61 and the gear ring 63 are driven by a rack belt 62. The second motor 6 drives the gear ring 63 to rotate, thereby providing the force required for the rotation of the center column 8.
[0030] A second shell 2 is provided above the first shell 1, and a plurality of feed ports 23 are fixedly installed on the upper surface of the second shell 2, an auger 21 is rotatably installed inside the second shell 2, and a third motor 22 is fixedly installed on the upper surface of the second shell 2, and a driving end of the third motor 22 passes through the upper wall of the second shell 2 and is fixedly installed on the end of the auger 21. When in use, coarse aggregate, fine aggregate, cement, etc. after proportioning are respectively added to the inside of the plurality of feed ports 23, and then the third motor 22 is controlled to work, and the work of the third motor 22 drives the auger 21 to rotate, and then the raw materials inside are dry mixed.
[0031] A toothed plate 4 is rotatably mounted on the lower surface of the second shell 2, and the toothed plate 4 is rotatably mounted on the middle part of the upper surface of the first shell 1. Two second leakage grooves 41 are symmetrically arranged on the toothed plate 4, and the volume of each second leakage groove 41 occupies a quarter of a circle. A plurality of first leakage grooves 11 corresponding to the second leakage grooves 41 are arranged on the upper surface of the first shell 1. A first motor 5 is fixedly mounted on one side of the second shell 2, and a first gear 51 is fixedly mounted on the driving end of the first motor 5, and the first gear 51 is meshed with the toothed plate 4.
[0032] In actual use, the first motor 5 drives the first gear 51 to rotate, and then drives the toothed plate 4 to rotate. The toothed plate 4 is divided into four cycles, and each cycle rotates ninety degrees. Therefore, the first motor 5 also has four cycle working modes, and each operation can drive the toothed plate 4 to rotate ninety degrees. Because the volume of the second leakage groove 41 and the first leakage groove 11 occupies one-quarter of a circle, the toothed plate 4 completes an opening and closing operation every two cycles of rotation.
[0033] The raw materials are mixed in layers. First, the raw materials are dry mixed inside the second shell 2. After the dry mixing is completed, the second motor 6 works to transport the dry mixed materials to the inside of the first shell 1 through the first leakage trough 11, and wet mixed inside the first shell 1. When mixing, traditional mixers often add aggregates, cement and water into the mixer together, but this situation will cause water and cement to react quickly, resulting in agglomeration of part of the cement, and cause large aggregates to be unevenly mixed and easily sink to the bottom.
[0034] By setting up the first shell 1, the raw materials are first dry-mixed in the second shell 2, and after the dry mixing is sufficient, they are transported to the inside of the first shell 1, and wet-mixed inside the first shell 1, and then discharged from the discharge port to achieve dry-wet separation. Mixing the materials fully first and then adding water can increase the uniformity of stirring and prevent the occurrence of uneven mixing of large aggregates.
[0035] Furthermore, when the second shell 2 is dry mixed, the external water pump is controlled to add proportioned water flow into the interior of the first shell 1, so that the inner wall of the first shell 1 can be cleaned while adding water, preventing the concrete on the inner wall of the first shell 1 from solidifying, saving water resources, and allowing the device to process concrete for a long time and achieve self-cleaning during the processing.
[0036] A third shell 12 is fixedly installed inside the first shell 1, a temperature control pipe 7 is fixedly installed between the first shell 1 and the third shell 12, the temperature control pipe 7 is tightly wound around the outer surface of the third shell 12, a cooling tower 3 is provided on one side of the first shell 1, an input end of the temperature control pipe 7 extends to the outside of the first shell 1 and is connected to the output end of the cooling tower 3, and an output end of the temperature control pipe 7 extends to the outside of the first shell 1 and is connected to the input end of the cooling tower 3.
[0037] Studies have shown that the setting speed of concrete is related to both humidity and temperature. The higher the humidity, the longer it takes for the cement and water in the concrete to react completely, which in turn prolongs the setting speed of the concrete. When the ambient temperature is between 5-20 degrees, the setting speed of the concrete increases as the temperature gradually rises. When the temperature is below 5 degrees, some of the water molecules inside the concrete will freeze, causing the concrete structure to be destroyed. When the temperature is above 20 degrees, the concrete will dry quickly and crack, thereby damaging the concrete.
[0038] Therefore, by setting up the temperature control pipe 7, the mixed concrete will be stored in the interior of the first shell 1 when in use, and the cooling tower 3 will input a constant temperature water flow into the temperature control pipe 7, thereby cooling the interior of the first shell 1, so that the coagulation speed of the concrete inside it is reduced, so that the first shell 1 has the ability to store concrete, and even if the transport vehicle has not arrived, the concrete can still be processed without reducing the coagulation time of the concrete, which can ensure that the concrete still has sufficient time during transportation.
Claims
1. A concrete mixer for a concrete production line, comprising a first housing (1), characterized in that: A second shell (2) is provided above the first shell (1); a tooth plate (4) is rotatably mounted on the lower surface of the second shell (2); the tooth plate (4) is rotatably mounted on the middle part of the upper surface of the first shell (1); a central column (8) is provided inside the first shell (1); a top plate (81) is fixedly mounted on the top end of the central column (8); the bottom end of the central column (8) is rotatably mounted on the middle part of the bottom surface of the first shell (1); and the top plate (81) is rotatably mounted on the middle part of the top end of the first shell (1); A central groove (84) is provided in the middle of the central column (8); a plurality of stirring rods (82) are fixedly installed at the outer ring of the central column (8); a wing groove (86) is provided in the middle of each of the plurality of stirring rods (82); a first nozzle (87) is provided at one end of each stirring rod (82) away from the central column (8); a top groove (85) is provided inside the top plate (81); a second annular nozzle (88) is provided on the lower surface of the top plate (81); the second nozzle (88), the top groove (85), the central groove (84), the wing groove (86), and the first nozzle (87) are connected in sequence.
2. A concrete mixer for a concrete production line according to claim 1, characterized in that: The lower end of the central column (8) extends to the outside of the first shell (1) and is fixedly mounted with a gear ring (63); a first connecting tube (64) is fixedly mounted on the lower surface of the gear ring (63); a sealing ring (65) is rotatably sleeved on the outside of the first connecting tube (64); and a second connecting tube (66) is rotatably clamped on one end of the sealing ring (65) away from the first connecting tube (64).
3. A concrete mixer for a concrete production line according to claim 2, characterized in that: A second motor (6) is fixedly mounted on one side of the first housing (1); a second gear (61) is fixedly mounted on the driving end of the second motor (6); the second gear (61) and the gear ring (63) are driven via a rack belt (62).
4. A concrete mixer for a concrete production line according to claim 1, characterized in that: A third shell (12) is fixedly installed inside the first shell (1), a temperature control pipe (7) is fixedly installed between the first shell (1) and the third shell (12), the temperature control pipe (7) is tightly wound around the outer surface of the third shell (12), a cooling tower (3) is provided on one side of the first shell (1), the input end of the temperature control pipe (7) extends to the outside of the first shell (1) and is connected to the output end of the cooling tower (3), and the output end of the temperature control pipe (7) extends to the outside of the first shell (1) and is connected to the input end of the cooling tower (3).
5. A concrete mixer for a concrete production line according to claim 1, characterized in that: An auger (21) is rotatably mounted inside the second shell (2), a third motor (22) is fixedly mounted on the upper surface of the second shell (2), and a driving end of the third motor (22) passes through the upper wall of the second shell (2) and is fixedly mounted on the end of the auger (21).
6. A concrete mixer for a concrete production line according to claim 1, characterized in that: The tooth plate (4) is provided with two second leakage grooves (41) which are symmetrical to each other, and the volume of each second leakage groove (41) occupies a quarter of a circle; the upper surface of the first shell (1) is provided with a plurality of first leakage grooves (11) corresponding to the second leakage grooves (41); a first motor (5) is fixedly mounted on one side of the second shell (2); a first gear (51) is fixedly mounted on the driving end of the first motor (5), and the first gear (51) is meshed with the tooth plate (4).
7. A concrete mixer for a concrete production line according to claim 1, characterized in that: A plurality of feed ports (23) are fixedly mounted on the upper surface of the second shell (2).
8. The concrete mixer for a concrete production line according to claim 1, characterized in that: A plurality of evenly distributed scrapers (83) are fixedly mounted on the bottom end of the central column (8).